Patents Examined by H. M. S. Sneed
  • Patent number: 4944891
    Abstract: A PZT-polymer composite of 0-3 connectivity further includes a third phase particulate additive of conductive or semiconductive material to increase the electrical conductivity of the polymer matrix.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: July 31, 1990
    Assignee: Hoechst Celanese Corp.
    Inventors: Geon Sagong, Robert E. Newnham, Ahmad Safari, Sei-Joo Jang
  • Patent number: 4941964
    Abstract: A process for the hydrotreatment of a sulfur and metal-containing hydrocarbon feed comprises contacting said feed with hydrogen and a catalyst in a manner such that the catalyst is maintained at isothermal conditions and is exposed to a uniform quality of feed, where said catalyst has a composition comprising 3.0-5.0 wt. % of an oxide of a Group VIII metal, 14.5-24.0 wt. % of an oxide of a Group VIB metal and 0-2.0 wt. % of an oxide of phosphorus supported on a porous alumina support, and said catalyst is further characterized by having a total surface area of 150-210 m.sup.2 /g and a total pore volume of 0.50-0.75 cc/g with a pore diameter distribution such that micropores having diameters of 100-160A constitute 70-85% of the total pore volume of said catalyst and macropores having diameters of greater than 250A constitute 5.5-22.0% of the total pore volume of said catalyst.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: July 17, 1990
    Assignee: Texaco Inc.
    Inventors: Pei-Shing E. Dai, David E. Sherwood, Jr., Burton H. Bartley, Randall H. Petty
  • Patent number: 4940826
    Abstract: A process for preparing mono-olefins by catalytic oxidative dehydrogenation of e.g. ethane, propane or butanes is provided. The process employs a catalyst which is capable of supporting combustion beyond the normal fuel rich limit of flammability. Preferred catalysts are platinum group metals supported on a monolith e.g. platinum.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: July 10, 1990
    Assignee: British Petroleum Company p.l.c.
    Inventors: Joseph J. Font Freide, Mark J. Howard, Trevor A. Lomas
  • Patent number: 4930530
    Abstract: In a leaf loading method, leaves are picked up from the ground by operating a rotary beater and a rotary broom. The leaves are then delivered between the beater and the broom by rotating the beater and the broom in opposite directions. Next, the leaves are guided from between the beater and the broom toward an auger disposed rearwardly of the broom. Finally, the leaves are transferred from the auger into a thrower by rotating the auger and then the leaves are discharged by operating the thrower.
    Type: Grant
    Filed: August 5, 1988
    Date of Patent: June 5, 1990
    Assignee: Ford New Holland, Inc.
    Inventors: John B. Crego, Ronald T. Sheehan, Robert M. VanGinhoven
  • Patent number: 4929786
    Abstract: Preparation of 1-aryl-1-alkenes by dehydration of 1-aryl-1-alkanols in the presence of a substance promoting elimination of water, the substance being a triester of phosphorous acid in which at least one of the radicals is an aryl group.The products are suitable as, inter al., initiators for anionic polymerization.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: May 29, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Himmele, Kaspar Bott, Klaus Bronstert
  • Patent number: 4929785
    Abstract: A process is disclosed for producing diphenylalkanes, which process comprises the formation of a reaction mass comprising a (1) solvent, (2) iron, (3) copper, Cu(I) salt or a mixture thereof, and (4) phenylalkylhalide, and maintaining this reaction mass at a temperature of at least 40.degree. C. until diphenylalkane is formed.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: May 29, 1990
    Assignee: Ethyl Corporation
    Inventor: Saadat Hussain
  • Patent number: 4929784
    Abstract: Optionally substituted benzyl-benzenes can be prepared by reaction of a benzyl alcohol of the formula ##STR1## with a benzene of the formula ##STR2## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 independently of one another denote hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, fluorine or chlorine, where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another may also represent hydroxyl and R.sup.5 may additionally be C.sub.5 -C.sub.8 -alkyl,R.sup.6 represents hydrogen or one of the groups ##STR3## R.sup.8 denotes hydrogen or hydroxymethyl, in a ratio of 1 mole of benzene to 0.8-5 moles of benzyl alcohol in the presence of an amount of activated bleaching earth of 0.05-5% by weight, relative to the amount of benzyl alcohol, at a temperature between 90.degree. C. and 140.degree. C. in the presence of a diluent.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: May 29, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt Klinkmann, Michael Herzhoff, Gerhard Burmeister
  • Patent number: 4927816
    Abstract: Formulae, means, and methods for the sublingual ingestion of natural Progesterone comprising milling and blending natural Progesterone such that it can be absorbed by the sublingual mucosae of a patient and applying it to said sublingual mucosae in a form which permits such absorption.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: May 22, 1990
    Inventor: George C. Ester
  • Patent number: 4927921
    Abstract: A compound of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 is methyl or ethyl, and A,B,C and D rings optionally containing at least one double bond and optionally substituted with at least one member of the group consisting of optionally protected --OH, .dbd.O, alkyl and alkoxy of 1 to 4 carbon atoms, halogen and alkenyl and alkynyl of 2 to 4 carbon atoms, R is selected from the group consisting of halogen, --OH, alkylthio and alkoxy of 1 to 6 carbon atoms, aralkoxy, arylthio and aralkylthio of 7 to 15 carbon atoms and ##STR2## R.sub.3 and R.sub.4 are individually hydrogen, or alkyl of 1 to 6 carbon atoms or aralkyl of 7 to 15 carbon atoms or taken together with the nitrogen form a heterocycle optionally containing another nitrogen or oxygen atom, excepting the product in which R is methoxy, R.sub.1 and R.sub.2 each represent methyl, A ring carries a 3.beta.-acetoxy function and B ring contains a double bond in 5(6) useful as intermediates for the preparation of 20-keto-pregnanes.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: May 22, 1990
    Assignee: Roussel Uclaf
    Inventors: Michel Vivat, Jean Buendia
  • Patent number: 4925635
    Abstract: A cooling fluid is utilized to withdraw heat from a KOH treater. The passing of the cooling fluid in heat exchange with the KOH treater is controlled so as to maintain desired operating pressures for the cooling fluid and also to substantially maximize heat transfer. Bypassing of the feed around the KOH treater to prevent temperature runaway is utilized only if sufficient cooling cannot be provided by the cooling fluid to prevent temperature runaway.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: May 15, 1990
    Assignee: Phillips Petroleum Company
    Inventor: Joe B. Hampton
  • Patent number: 4922047
    Abstract: Bicyclic and monocyclic terpenes are oligomerized by contact over a zeolite catalyst to produce high boiling lube oil traction fluid having a high traction coefficient. The traction fluid comprises dimers, trimers and tetramers of the bicyclic and monocyclic terpenes. The lube oil is catalytically hydrogenated to obtain a saturated cycloparaffin hydrocarbon oil traction fluid.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: May 1, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Catherine S. H. Chen, Thomas R. Forbus, Jr.
  • Patent number: 4921857
    Abstract: This invention relates to a method of treating bacterial infections with 4-oxo-4H-quinolizine-3-carboxylic acids and derivatives thereof. This invention further relates to pharmaceutical compositions that are useful in the treatment of bacterial infections.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: May 1, 1990
    Assignee: Merck & Co., Inc.
    Inventors: James V. Heck, Eugene D. Thorsett
  • Patent number: 4918254
    Abstract: Alkyl groups in trialkyl aluminum are displaced by .alpha.-olefins in the presence of a nickel catalyst. The displaced alkyl group evolve as .alpha.-olefins. The displacement is fast and the catalyst is then poisoned with a catalyst poison such as lead to prevent undesired side reactions such as isomerization of .alpha.-olefins to internal olefins or dimerization to vinylidene olefins.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: April 17, 1990
    Assignee: Ethyl Corporation
    Inventors: Steven P. Diefenbach, Gene C. Robinson
  • Patent number: 4916227
    Abstract: A method for the preparation of biaryl compounds is disclosed which comprises contacting an aromatic halide in the presence of a catalyst comprising zerovalent nickel, a bidentate phosphorus-containing coordinating ligand and a reducing metal in a polar, aprotic solvent system for a time and under conditions suitable for the formation of biaryl compound.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: April 10, 1990
    Assignee: Eastman Kodak Company
    Inventor: Thomas A. Puckette
  • Patent number: 4912275
    Abstract: Alumina-composited zeolite catalysts are activated by contact with an aqueous ammonium solution under ammonia gas pressure such that a pH of at least about 8 is maintained in the solution. The treated zeolite may thereafter be calcined without prior ammonium-exhange to provide the zeolite in the hydrogen form. Catalysts which are activated in this manner are useful for converting alcohols and/or ethers to hydrocarbons including aromatics.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: March 27, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Cynthia T-W. Chu, Carol S. Lee
  • Patent number: 4910226
    Abstract: Invented are substituted acrylate analogues of steroidal synthetic compounds, pharmaceutical compositions containing the compounds, and methods of using these compounds to inhibit steroid 5-.alpha.-reductase. Also invented are intermediates used in preparing these compounds.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: March 20, 1990
    Assignee: SmithKline Beckman Corporation
    Inventors: Dennis A. Holt, Mark A. Levy, Brian W. Metcalf
  • Patent number: 4908358
    Abstract: Methods of modulating the clearance of antibody-coated cells from the circulation of mammals are disclosed. A compound having the formula ##STR1## wherein R and R.sub.1 individually are hydrogen or taken together form a double bond;R.sub.2 is hydrogen or methyl; R.sub.3 is hydrogen or hydroxyl; and R.sub.4 is hydrogen or hydroxyl is administered in an amount effective to modulate the clearance of antibody-coated cells from the bloodstream of the mammals.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: March 13, 1990
    Assignee: Trustees of The University of Pennsylvania
    Inventor: Alan D. Schreiber
  • Patent number: 4908067
    Abstract: A continuous hydrolysis process for the hydrolysis of wood and wood derived products into sugars and other products, wherein woodchip or other feedstock is formed into a slurry which is acidified, pressurized and heated before being hydrolyzed in reactors J. Three heat exchangers L1, L2 and L3 form a closed circuit in which exchanger L2 recovers heat from the slurry, L1 returns heat to the slurry and L3 makes up lost heat. The slurry is cooled before pressure reduction by pressure reducing means N and separation of the solids and liquid. The cooling prevents flashing to steam of part of the liquid in the slurry so that the process is single phase where generation of steam is avoided. After separation the solids can proceed to further processing or to discharge as lignin as indicated by arrow B. The liquid can proceed to further processing or discharge as indicated by arrow D.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: March 13, 1990
    Assignee: Jack T. H. Just
    Inventor: Jack T. H. Just
  • Patent number: 4906669
    Abstract: Anti-ulcer agents containing isoprenoid derivatives are provided. The isoprenoid derivatives are represented by the formula: ##STR1## wherein: R represents a group of formula ##STR2## In the above formula, R.sub.1, R.sub.2 and R.sub.3 may be the same or different each other and each represents a hydrogen atom, a hydroxy group, a lower alkanoyloxy group, a lower alkyl group or a lower alkoxy group, provided that two or more of them do not represent hydrogen atoms at the same time; R.sub.4 and R.sub.5 may be the same or different each other and each represents a hydrogen atom, a hydroxy group or a lower alkanoyloxy group represents the signal or the double bond between the carbon atoms; m represents 0 or 1; n represents 0 or an integer of from 1 to 9, provided that the sum of m and n is an integer of from 1 to 9.
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: March 6, 1990
    Assignees: Nisshin Flour Milling Co., Ltd., Grelan Pharmaceutical Co., Ltd.
    Inventors: Kazuhiko Yamada, Yoshiyuki Tahara, Masashi Toyoda, Osamu Irino, Noriyuki Misaki
  • Patent number: 4904808
    Abstract: A novel ligand for use in hydroformylation reactions wherein at least one olefin having from 2 to 20 carbon atoms is contacted in a reaction zone at a temperature of from about 20.degree. C. to about 250.degree. C. and a pressure of from about 50 psig to about 800 psig with hydrogen, carbon monoxide, and a catalyst containing rhodium, the ligand having the formula ##STR1## wherein: n is 1-4;each R is independently selected from hydrogen, alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl or cyano;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.1 substituents; andeach Y is independently selected from the elements N, P, As, Sb and Bi.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: February 27, 1990
    Assignee: Eastman Kodak Company
    Inventors: Thomas J. Devon, Gerald W. Phillips, Thomas A. Puckette, Jerome L. Stavinoha, Jeffrey J. Vanderbilt